Yamaha DVD-S520-DV-S5450 DVD Player Troubleshooting

  • View
    195

  • Download
    12

Embed Size (px)

Text of Yamaha DVD-S520-DV-S5450 DVD Player Troubleshooting

DVD-S520/DV-S5450

DVD PLAYER

DVD-S520/DV-S5450SERVICE MANUALIMPORTANT NOTICE

DVD-S520/DV-S5450

This manual has been provided for the use of authorized YAMAHA Retailers and their service personnel. It has been assumed that basic service procedures inherent to the industry, and more specifically YAMAHA Products, are already known and understood by the users, and have therefore not been restated.

WARNING:

Failure to follow appropriate service and safety procedures when servicing this product may result in personal injury, destruction of expensive components, and failure of the product to perform as specified. For these reasons, we advise all YAMAHA product owners that any service required should be performed by an authorized YAMAHA Retailer or the appointed service representative. IMPORTANT: The presentation or sale of this manual to any individual or firm does not constitute authorization, certification or recognition of any applicable technical capabilities, or establish a principle-agent relationship of any form. The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover. The research, engineering, and service departments of YAMAHA are continually striving to improve YAMAHA products. Modifications are, therefore, inevitable and specifications are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact the distributor's Service Division.

WARNING:

Static discharges can destroy expensive components. Discharge any static electricity your body may have accumulated by grounding yourself to the ground buss in the unit (heavy gauge black wires connect to this buss). IMPORTANT: Turn the unit OFF during disassembly and part replacement. Recheck all work before you apply power to the unit.

s CONTENTSTO SERVICE PERSONNEL .......................................... 1 WARNINGS ................................................................ 1~2 PREVENTION OF ELECTRO STATIC DISCHARGE ............. 3 LOCALE MANAGEMENT INFORMATION ................... 3 FRONT PANELS ............................................................ 4 REMOTE CONTROL TRANSMITTER .......................... 4 REAR PANELS .......................................................... 5~6 SPECIFICATIONS ...................................................... 6~7 DISASSEMBLY PROCEDURES ................................... 8 SERVICE POSITION ...................................................... 9 SERVICE HINTS ............................................................ 9 DIAGNOSTIC SOFTWARE: SCRIPT INTERFACES .... 10~11 INTERACTIVE TESTS ........................................... 12~18 TEST INSTRUCTIONS .......................................... 18~21 TROUBLESHOOTING ........................................... 22~28 TECHNICAL SPECIFICATIONS DVD MODULE ...... 29~30 LIST OF ABBREVIATIONS ......................................... 31 IC DESCRIPTIONS ................................................ 32~41 WIRING DIAGRAM ...................................................... 42 BLOCK DIAGRAM ................................................. 43~44 PRINTED CIRCUIT BOARD .................................. 45~65 SCHEMATIC DIAGRAM ........................................ 65~77 PARTS LIST ........................................................... 78~87 REMOTE CONTROL TRANSMITTER ........................ 88

100795P.O.Box 1, Hamamatsu, Japan

DVD-S520/DV-S5450

s TO SERVICE PERSONNEL1. Critical Components Information Components having special characteristics are marked s and must be replaced with parts having specifications equal to those originally installed. 2. Leakage Current Measurement (For 120V Models Only) When service has been completed, it is imperative to verify that all exposed conductive surfaces are properly insulated from supply circuits.q

WALL OUTLET

EQUIPMENT UNDER TEST

AC LEAKAGE TESTER OR EQUIVALENT

Meter impedance should be equivalent to 1500 ohm shunted by 0.15F. Leakage current must not exceed 0.5mA. Be sure to test for leakage with the AC plug in both polarities.

INSULATING TABLE

q q

THE DVD PLAYER SHOULD NOT BE ADJUSTED OR REPAIRED BY ANYONE EXCEPT PROPERLY QUALIFIED SERVICE PERSONNEL.

s WARNINGS WARNING: CHEMICAL CONTENT NOTICE!DVD-S520/DV-S54501 The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and /or plastic (where applicable) components may also contain traces of chemicals found by the California Health and Welfare Agency (and possibly other entities) to cause cancer and/or birth defects or other reproductive harm. DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON WHATSOEVER! Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or expose eyes to solder/flux vapor! If you come in contact with solder or components located inside the enclosure of this product, wash your hands before handling food.

WARNING: Laser SafetyThis product contains a laser beam component. This component may emit invisible, as well as visible radiation, which may cause eye damage. To protect your eyes and skin from laser radiation, the following precautions must be used during servicing of the unit. 1) When testing and/or repairing any component within the product, keep your eyes and skin more than 30 cm away from the laser pick-up unit at all times. Do not stare at the laser beam at any time. 2) Do not attempt to readjust, disassemble or repair the laser pick-up, unless noted elsewhere in this manual. 3) CAUTION: Use of controls, adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.

Laser Emitting conditions:1) When the Top Cover is removed and the "POWER" SW is turned to the "ON" position, the laser component will emit a beam for several seconds to detect if a disc is present. During this time (5 - 10 sec.) the laser may radiate through the lens of the laser pick-up unit. Do not attempt any servicing during this period! If no disc is detected, the laser will stop emitting the beam. When a disc is loaded, you will not be exposed to any laser emissions. 2) The laser power level can be adjusted with the VR on the pick-up PWB. However, this level has been set by the factory prior to shipping from the factory. Do not adjust this laser level control unless instruction is provided elsewhere in this manual. Adjustment of this control can increase the laser emission level from the device.

DVD-S520/DV-S5450

Laser Diode PropertiesType: Wave length: Output Power: Beam divergence: Semiconductor laser GaAlAs 650 nm (DVD) 780 nm (VCD/CD) 7 mW (DVD) 10 mW (VCD/CD) 60 degree

Output value is determined by CFR CHAPTER1, SUBCHAPTER J

VARO!

: AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA NkymTTMLLE LASERSTEILYLLE. L KATSO STEESEEN. : OSYNLIG LASERSTRLNING NR DENNA DEL R PPNAD OCH SPRREN R URKOPPLAD. BETRAKTA EJ STRLEN.

VARNING!

WARNINGThe use of optical instruments with this product will increase eye hazard. Repair handling should take place as much as possible with a disc loaded inside the player

U, C modelsDANGER - Visible and invisible laser radiationwhen open. Avoid direct exposure to beam.

R, A, T, P modelsCAUTION - Visible and invisible laserradiation when open. Avoid exposure to beam.

B, G modelsCAUTION - Visible and invisible laserradiation when open. Avoid exposure to beam.

DVD-S520/DV-S5450

WARNING LOCATION: REAR PANELCAUTION VISIBLE AND INVISIBLE LASER RADIATI ON WHEN OPEN. AVOID EXPOSURE TO BEAM ADVARSEL SYNLIG OG USYNLIG LASERSTRLING VED BNING UNDG UDSTTELSE FOR STRLING ADVARSEL SYNLIG OG USYNLIG LASERSTRLING NR DEKSEL PNES UNNG EKSPONERING FOR STRLEN VARNING SYNLIG OCH OSYNLIG LASERSTRLNING NR DENNA DEL R PPNAD BETRAKTA EJ STRLEN VARO! AVATT AESSA OLET ALTTIINA NKYVLLE JA NKYMTTMLLE LASER STEILYLLE. L KATSO STEESEEN VORSICHT SICHTBARE UND UNSICHTBARE LASERSTRAHLUNG WENN ABDECKUNG GEFFNET NICHT DEM STRAHL AUSSETSEN DANGER VISIBLE AND INVISIBLE LASER RADIATI ON WHEN OPEN. AVOID DIRECT EXPOSURE TO BEAM ATTENTION RAYONNEMENT LASER VISIBLE ET INVISIBLE EN CAS D'OUVERTURE EXPOSITION DANGEREUSE AU FAISCEAU

Warning for power supplyThe primary side of the power supply including the heatsink carries live mains voltage when the player is connected to the mains even when the player is switched off ! This primary area is not shielded so it is possible to touch copper tracks and/or components when servicing the player. Service personnel have to take precautions to prevent touching this area or components in this area . The primary side of the power supply has been indicated with a lightening stroke and a stripe-marked print on the printed wiring board

Note:The screws on the DVD mechanism (position 18-1 in on the exploded view drawing) may never be touched, removed or re-adjusted. Handle the DVD mechanism with care when the unit has to be exchanged! The DVD mechanism is very sensitive for dropping or giving shocks. 2

DVD-S520/DV-S5450

s PREVENTION OF ELECTRO STATIC DISCHARGEThe laser diode in the traverse unit (optical pickup) may be damaged due to static electricity from clothes or the human body. Use caution to prevent electrostatic damage when servicing or handling the laser diode.

1. Grounding for electrostatic damage preventionSome devices, such as the DVD player, use an optical pickup (laser diode) that will be damaged by static electricity in the working environment. Only attempt service after ensuring that all grounding procedures have been completed. 1. Worktable grounding Put a grounded conductive material (sheet) or iron sheet on the area where the optical